6. Application and properties of galvanized products
6.1 Coating characteristics. Standardization
The main characteristics of the coatings to be followed are controlled according to the standards cited in the documentation. .
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Aspect
Uniform, relatively smooth, more or less shiny metallic gray coating. The appearance of darker matte areas corresponds to Fe-Zn alloy crystals emerging.
Surface crystallization (zinc flowers) can be variable.
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Zinc mass deposited
Roughly speaking, zinc thickness (µm) is equal to the coating mass deposited (g/m 2 ) divided by 7. Coating thickness ranges depend on the...
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Application and properties of galvanized products
Conclusion
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Economic data
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Annual world zinc production is 9 Mt, of which more than 50% is devoted to steel production (growth of around 3% per year).
There are 550 continuous galvanizing lines worldwide, producing 70 Mt of coated steel.
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In Europe, automotive consumption will reach 8 Mt in 2005.
In Europe, 1.7 Mt/year...
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